Electric-car plow



N0."748,810; PATENTED JAN. 5, 19M.

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' ELECTRIC CAR 21.0w.

APPLICATION FILED MAR. 30,1903.

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No. 748,810. PATENTED JAN. 5, 1904.

w. F. TAYLOR, JE-

ELECTRIC GAR PLOW.

APPLIOATION FILED MAR. 30, 1903.

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Patented January 5, 1904.

UNITED STATES PAT NT OFFICE...

WILLIAM F. TAYLOR, JR., OF PROVIDENCE, RHODE ISLAND, ASSIGNOR OF ONE-HALF TO THOMAS D. TAYLOR, OF BOSTON, MASSACHUSETTS.

ELECTRIC-CAR PLOW.

SPECIFICATION forming part of Letters'Patent No. 748,810, dated January 5, 1904. Application filed March 30, 1903. Serial No. 160,142. (No model.)

To all whmn it may concern.-

Be it known that I, WILLIAM' F. TAYLOR, Jr., a citizen of the United States, residingat Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Electric-Oar Plows, of which the following is a specification.

This invention relates to certain new and useful improvements in electric-car plows, and has for its primary Object means whereby switches or signals can be operated from the car through the medium of attachments carried by the said plows which contact with suitable contact-plates for completing an electric circuit.

My invention further has for its object means whereby the said attachments can be detachably secured in position.

Further, my invention contemplates the construction of a device which will be extremely simple in construction, durable, and inexpensive to manufacture.

Further objects and advantages will appear in the following description and defined in the appended claims.

In the accompanying drawings, in which like numerals of reference indicate like parts throughout the several views, Figure 1 is a view in section of the coriduit and the track, one of the car-trucks, and my improvement attached thereto. Fig. 2 is a longitudinal sectional view thereof. Fig. 3 is a view in side elevation of one of the contact-plates of the conduit. Fig. 4 is a transverse section thereof. Fig. 5 is a view in side elevation of one of the removable arms of the plow. Fig. 6 is a sectional view taken on line a, a of Fig. 2, and Fig. 7 is a section taken on line 17 b of Fig. 2.

1 indicates one of the trucks of the-car, to which is secured in any desired manner the plow 2, said plow being hollow and having jonrnaled in its lower end the contact roller or wheel 3, which normaily engages the feedrail 4, arranged in the conduit 5.

As heretofore stated, my improvement relates to the construction of the plow alone; but, as will be apparent, the same can be employed in connection with suitable contact- 1 These arms are hollow and have their inner ends screw-threaded, so that-when in their normal positions the said screw-threaded end will project through the upper ends of the pockets 7 and receive seouring nuts 9. The body portions of these arms are inclined outwardly for the greater part thereof and terminate in downwardly-bent ends on which are journaled the rollers 10, adapted to contact with the plates 6 of the conduit.

llindicates electrodes arranged in the plow and projecting into the pockets 7, which normally engage the electrodes 12, carried by the removable auxiliary arms 8.

The electrodes of the plow are connected to wires 13 and 14, respectively, which lead to a suitable plow-controller carried by the car, and the electrodes 12 are connected by suitable wires 15, arranged in the removable arms 8 and which engage the contact wheels or rollers 10. It will thus be obvious that as the controller is swung to engage one or the other of the wires 13 and'l t a. circuit will be completed from the car through one of the contacts 6 through wires 17 and 18, which lead to suitable switch or signal mechanism.

21 and 22 areground-wires leading to switch or signal mechanism, thereby completing the circuit through the wires 17 and 18 and both of the contacts.

The contact-plates 6 comprise the metallic face-strips 19, which are secured to suitable blocks of insulating material 20.

While I have shown my improvement as applied to an underground plow, it will be obvious that the same can readily, be connected to an overhead trolley without departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The'combination with the plow, of an arm arranged on each side of the said plow, pockets on said plow and hollow auxiliary arms having inclined portions and their upper ends engaged in said pockets, and means for securing the said arms to the said plow.

2. The combination with the plow, of pockets on said plow and hollow auxiliary arms having inclined portions and their upper ends engaged in said pockets, and electrical connections extending through the said plow and arms.

3. The combination with the plow, of pockets carried by said plow, and hollow arms removably arranged in the said pockets and wires passed through said arms.

4:. The combination with the plow, of outwardly-inclined hollow arms secured thereto, wires extended within said arms and rollers journaled on the outer ends of the said arms.

5. The combination with the hollow plow, of pockets secured to the said plow, electrodes arranged in the said plow and projecting into the said pockets, contact-arms secured in the said pocket, electrodes carried by the said arms normally engaging the electrodes of the plow, and electrical connections engaging the said electrodes.

6. An attachment for plows comprising a contact-arm made hollow with its central por tion inclined and having one of its ends screwthreaded to receive a securing-nut, and a roller journaled in its opposite end.

7. The combination with the plow, of pockets carried thereby, hollow contact-arms having their inner ends projecting through the said pockets, and means for securing the said WILLIAM F. TAYLOR, JR.

Witnesses:

THOMAS D. TAYLOR, HORATIO E. BELLOWS. 

